You can make a homemade mosquito spray that will kill the mosquitoes naturally by crushing up some garlic and boiling the garlic in water.
Then take the water and pour it into a spray bottle after it has cooled down. The garlic and water boiled together will create a mosquito spray that will kill off the mosquitoes when you spray it around the room and areas where the mosquitoes hang out.
Eating garlic will also cause you to put out a smell that the mosquitoes don't like and they'll avoid you and go elsewhere.
You can also plant garlic and other plants such as Lavender,rosemary etc around your patio or other outdoor space and the mosquitoes will stay away from the area.